20 Jun
2024
20 Jun
'24
9:15 a.m.
On Thu, Jun 20, 2024 at 2:13 AM Adrian Godwin via cctalk <
cctalk(a)classiccmp.org> wrote:
I'm interested in this. I'm looking at the
bottom end, the bus and cards,
but there may be information we can share.
That's where I'm starting, too. I'm using a 16500A (rather than a B, C, or
1670x) because it should be much simpler to figure out how the processor
accesses the registers and memory of the modules. Then it should be
possible to build something like a USB4 PCIe alternate mode interface to
the analyzer backplane, replacing the analyzer's CPU card.
I don't intend to reverse-engineer details of how the modules actually
work. Instead, I want to run the real 16700 software in simulation or
binary translation on a PC.
The tricky part is going to be figuring out how the module correlation
circuitry on the CPU board works, because my plan requires reproducing that.